The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1979
Filed:
Apr. 03, 1978
Applicant:
Inventor:
Paul E Allen, Newtown, CT (US);
Assignee:
Logic Devices, Inc., Sandy Hook, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
264219 ; 264328 ; 249 79 ; 249 63 ; 249141 ; 425812 ;
Abstract
A method and apparatus for forming a continuous cooling liquid passageway through two separable injection mold dies when they are closed with a supply system flowing cooling liquid at a less than atmospheric pressure at least at the junction of the dies through the passageway only when the dies are closed and air when the dies are opened and the passageway is discontinuous.